CN-121995497-A - Acoustic wave remote detection receiving acoustic system

CN121995497ACN 121995497 ACN121995497 ACN 121995497ACN-121995497-A

Abstract

The invention discloses a sound wave remote detection receiving sound system, which is applied to the technical field of petroleum logging, wherein adjacent sound wave detection receiving units are fixedly connected through a sound insulation cover, and a sound insulation cavity is formed between the adjacent sound wave detection receiving units by the sound insulation cover; the sound wave detection receiving unit comprises a columnar framework, a pressure-bearing bin is arranged in the framework, a plurality of receiving transducer assemblies uniformly distributed along the circumferential direction are arranged on the periphery of the framework, a receiving front-discharging circuit board assembly is arranged in the pressure-bearing bin, and the receiving transducer assemblies are electrically connected with the receiving front-discharging circuit board assembly. Through setting up the front-end circuit board subassembly of receiving in the skeleton for the signal filtering optimization and the enhancement of amplifying of signal can be carried out to front-end circuit board subassembly to the signal transmission that the receiving transducer subassembly gathered only through a section very short distance, make sound wave receiver have high signal to noise ratio. And the sound insulation cover can ensure the sound isolation between the adjacent sound wave detection receiving units.

Inventors

DU QUNJIE
QIN XIN
CHAO YONGSHENG
XU DAHUA
XU XIAOKAI
LI MINGGANG
ZHANG SHOUWEI
YUAN XIAOQI
WEN JIANPING
FAN JISHENG

Assignees

中国石油化工集团有限公司
中石化石油工程技术服务股份有限公司
中石化经纬有限公司
中石化经纬有限公司地质测控技术研究院

Dates

Publication Date: 20260508
Application Date: 20241104

Claims (10)

1. The sound wave remote detection receiving sound system is characterized by comprising at least two sound wave detection receiving units and a sound insulation cover positioned between two adjacent sound wave detection receiving units, wherein the adjacent sound wave detection receiving units are fixedly connected through the sound insulation cover, and a sound insulation cavity is formed between the adjacent sound wave detection receiving units by the sound insulation cover; the sound wave detection receiving unit comprises a columnar framework, a pressure-bearing bin is arranged in the framework, a plurality of receiving transducer assemblies uniformly distributed along the circumferential direction are arranged on the periphery of the framework, a receiving front-end circuit board assembly is arranged in the pressure-bearing bin, and the receiving transducer assemblies are electrically connected with the receiving front-end circuit board assembly.
2. The acoustic wave remote detection receiving acoustic system according to claim 1, wherein one end of the pressure-bearing bin in the axial direction of the skeleton is an opening, and the other end is a bottom; the receiving front-placed circuit board assembly comprises a front-placed circuit board and a pressure-bearing block welded with the front-placed circuit board, and the pressure-bearing block is in sealing connection with an opening of the pressure-bearing bin.
3. The acoustic wave remote detection receiving sound system according to claim 2, wherein the pressure-bearing block is provided with a connector penetrating the pressure-bearing block in an axial direction, one end of the connector, which is close to the front pay-off circuit board, is welded with a gold finger of the front pay-off circuit board, and one end of the connector, which is far from the front pay-off circuit board, protrudes out of a surface of the pressure-bearing block.
4. The acoustic remote detection receiving system according to claim 3, further comprising a socket located at a side of the pressure-bearing block away from the front-end circuit board, wherein a female connector in the socket is correspondingly connected with the connector; and a binding post extending along the axial direction is arranged on the surface of one side of the socket, which is far away from the pressure bearing block.
5. The acoustic remote detection receiving system according to claim 1, further comprising a housing and a high temperature oil within the housing, wherein the acoustic detection receiving unit and the sound insulation cover are located within the housing and immersed in the high temperature oil.
6. The acoustic remote detection receiving sound system of claim 5, wherein the housing is provided with a stiffening grid corresponding to the location of the receiving transducer assembly.
7. The acoustic remote detection receiving sound system of claim 5, wherein the housing surface is provided with a standoff, a top of the standoff protruding from the housing surface.
8. The acoustic remote detection receiving sound system of claim 7, wherein the standoff surface is provided with a sound dampening hole.
9. The acoustic remote sensing receiving system according to any one of claims 1 to 8, wherein the receiving transducer assembly comprises two piezoelectric ceramic sheets stacked, the piezoelectric ceramic sheets being polarized in a thickness direction; the positive electrode side surface of one piezoelectric ceramic plate is contacted with the negative electrode side surface of the other piezoelectric ceramic plate and is electrically connected with the negative electrode side surface of the other piezoelectric ceramic plate, so that the two piezoelectric ceramic plates are connected in series.
10. The acoustic remote sensing receiving system of claim 9, wherein the receiving transducer assembly further comprises a negative electrode conductive sheet and a positive electrode conductive sheet, the negative electrode conductive sheet being in contact with an exposed negative side surface of the two piezoelectric ceramic sheets of the stacked arrangement, the positive electrode conductive sheet being in contact with an exposed positive side surface of the two piezoelectric ceramic sheets of the stacked arrangement.

Description

Acoustic wave remote detection receiving acoustic system Technical Field The invention relates to the technical field of petroleum logging, in particular to a sound wave remote detection receiving acoustic system. Background The conventional acoustic remote detection receiving system consists of a plurality of groups of multipole receiving units, each receiving unit consists of two multipole sheet-shaped piezoelectric ceramics in each direction in parallel, but as the depth of a well hole increases, the pressure and the temperature in the well hole continuously increase, so that the sensitivity and the performance of the piezoelectric ceramics can be drastically reduced, the receiving of acoustic signals, especially acoustic signals in a deep well, can not be accurately completed, and effective acoustic signals are difficult to obtain in the current increasingly horizontal well and highly inclined well measurement. It is an urgent problem to be solved by those skilled in the art how to provide a high signal-to-noise ratio that can realize the acoustic far-detection signal in the high-temperature and high-pressure environment of deep wells. Disclosure of Invention The invention aims to provide a sound wave far detection receiving sound system which can realize high signal-to-noise ratio of sound wave far detection signals in a deep well high-temperature high-pressure environment. In order to solve the technical problems, the invention provides a sound system for sound wave remote detection and reception, which comprises at least two sound wave detection and reception units and a sound insulation cover positioned between the two adjacent sound wave detection and reception units, wherein the adjacent sound wave detection and reception units are fixedly connected through the sound insulation cover, and the sound insulation cover forms a sound insulation cavity between the adjacent sound wave detection and reception units; the sound wave detection receiving unit comprises a columnar framework, a pressure-bearing bin is arranged in the framework, a plurality of receiving transducer assemblies uniformly distributed along the circumferential direction are arranged on the periphery of the framework, a receiving front-end circuit board assembly is arranged in the pressure-bearing bin, and the receiving transducer assemblies are electrically connected with the receiving front-end circuit board assembly. Optionally, one end of the pressure-bearing bin along the axis direction of the framework is an opening, and the other end is a bottom; the receiving front-placed circuit board assembly comprises a front-placed circuit board and a pressure-bearing block welded with the front-placed circuit board, and the pressure-bearing block is in sealing connection with an opening of the pressure-bearing bin. Optionally, the pressure-bearing block is provided with a connector penetrating through the pressure-bearing block along the axial direction, one end of the connector, which is close to the front paying-off circuit board, is welded with the golden finger of the front paying-off circuit board, and one end, which is far away from the front paying-off circuit board, of the connector protrudes out of the surface of the pressure-bearing block. Optionally, the connector further comprises a socket positioned at one side of the pressure-bearing block away from the front-placed circuit board, and a female head in the socket is correspondingly connected with the connector; and a binding post extending along the axial direction is arranged on the surface of one side of the socket, which is far away from the pressure bearing block. Optionally, the device further comprises a shell and high-temperature oil positioned in the shell, wherein the sound wave detection receiving unit and the sound insulation cover are positioned in the shell and soaked in the high-temperature oil. Optionally, the housing is provided with a reinforcing grid corresponding to the position of the receiving transducer assembly. Optionally, the housing surface is provided with a spacer, the top of which protrudes from the housing surface. Optionally, the surface of the spacer is provided with a sound damping hole. Optionally, the receiving transducer assembly includes two piezoelectric ceramic plates stacked, and the piezoelectric ceramic plates are polarized along a thickness direction; the positive electrode side surface of one piezoelectric ceramic plate is contacted with the negative electrode side surface of the other piezoelectric ceramic plate and is electrically connected with the negative electrode side surface of the other piezoelectric ceramic plate, so that the two piezoelectric ceramic plates are connected in series. Optionally, the receiving transducer assembly further includes a negative electrode conductive sheet and a positive electrode conductive sheet, the negative electrode conductive sheet is attached to a surface of a bare negative electrode side o